Covid Figures and Maps
Steven Rashin
July 31, 2020
Headline Numbers
As of the latest CDC data release on July 30, 2020 there are:
- 70,292 new cases
- The state with the most cases is FL with 9,986
- The county with the most cases is Miami-Dade County in FL with 2,773 new cases
- The record number of national cases per day is 80,319 on July 16, 2020
- The state with the most cases is FL with 9,986
- 1,283 new deaths
- The record number of deaths per day is 3,153 on April 14, 2020
Where I live, in Somerville, MA, as of July 29, 2020 there are:
- 0 new cases
- 32 cases in the last two weeks
- Out of 1043 cases overall
- 36 Fatalities and
- 992 Recoveries
- Out of 1043 cases overall
Consequently, in the United States, there are now:
- 4,457,572 total cases
- 150,679 total deaths
Globally, as of the latest WHO data release on July 31, 2020, there are:
- 17,106,007 total cases
- 292,527 today
- 668,910 total deaths
- 6,812 today
Overall Covid Cases In The USA
Regions are defined as follows: Northeast (CT, ME, MA, NH, RI, VT, NJ, NY, PA), Midwest (IN, IL, MI, OH, WI, IA, KS, MN, MO, NE, ND, SD), South (AL, AR, DC, DE, FL, GA, KY, LA, MD, MS, NC, OK, SC, TN, TX, VA, WV) and West (AZ, CO, ID, NM, MT, UT, NV, WY, AK, CA, HI, OR, WA). The red line denotes the date that Health and Human Services (HHS) took over the production of data from the Center for Disease Control (CDC) on July 20, 2020.1
US Cases Compared to World Cases
Covid Cases in Somerville, MA and MA
Latest Cases in Boston Area (Today, One Week Ago, Two Weeks Ago)
| Date | County Name | Cases | Deaths | New Cases | New Deaths |
|---|---|---|---|---|---|
| July 30, 2020 | Middlesex County | 25617 | 1974 | 82 | 3 |
| July 23, 2020 | Middlesex County | 25123 | 1951 | 39 | 0 |
| July 16, 2020 | Middlesex County | 24685 | 1934 | 33 | 6 |
| July 30, 2020 | Norfolk County | 10160 | 982 | 57 | 3 |
| July 23, 2020 | Norfolk County | 9849 | 974 | 28 | 2 |
| July 16, 2020 | Norfolk County | 9588 | 962 | 28 | 0 |
| July 30, 2020 | Suffolk County | 21113 | 1055 | 83 | 1 |
| July 23, 2020 | Suffolk County | 20732 | 1042 | 54 | 3 |
| July 16, 2020 | Suffolk County | 20445 | 1027 | 34 | 3 |
New Covid Cases By State
The plot below shows the number of new COVID cases by state. Note that each figure has its own y axis; this is done so that trends can be seen within each state. Log scales can make the difference between 100 and 1000 cases hard to discern and a common y axis causes states like NY and CA to swamp states like NC. Negative new cases can occur when States revise their total number of cases downwards, as Hawaii did between June 30, 2020 and July 1, 2020.
COVID Cases per 1,000 Residents by State
This figure shows the number of COVID cases per 1,000.
Latest County Case Map
Latest County Death Map
Counties with the Most Cases Over Time
| Date | State | County Name | Cases | Deaths |
|---|---|---|---|---|
| 2020-07-30 | CA | Los Angeles County | 185872 | 4552 |
| 2020-07-30 | FL | Miami-Dade County | 115916 | 1515 |
| 2020-07-30 | AZ | Maricopa County | 114852 | 2011 |
| 2020-07-30 | IL | Cook County | 104687 | 4872 |
| 2020-07-30 | TX | Harris County | 69126 | 1206 |
| 2020-07-01 | CA | Los Angeles County | 105507 | 3402 |
| 2020-07-01 | IL | Cook County | 90911 | 4581 |
| 2020-07-01 | NY | Queens County | 65455 | 7059 |
| 2020-07-01 | NY | Kings County | 59742 | 7104 |
| 2020-07-01 | AZ | Maricopa County | 52266 | 817 |
| 2020-06-01 | IL | Cook County | 78495 | 3658 |
| 2020-06-01 | NY | Queens County | 62094 | 6271 |
| 2020-06-01 | NY | Kings County | 56053 | 6742 |
| 2020-06-01 | CA | Los Angeles County | 55968 | 2362 |
| 2020-06-01 | NY | Bronx County | 45359 | 4480 |
| 2020-05-01 | NY | Queens County | 52274 | 5111 |
| 2020-05-01 | NY | Kings County | 45519 | 5320 |
| 2020-05-01 | IL | Cook County | 38668 | 1673 |
| 2020-05-01 | NY | Bronx County | 37785 | 3527 |
| 2020-05-01 | NY | Nassau County | 36161 | 1720 |
Hospitalizations By State
Patients Currently in the ICU
Patients Currently on Ventilators
Cumulative Cases by County in the Northeast
Cumulative Cases by State Over Time
Cumulative Deaths by State Over Time
Daily Percent Positive Cases
According to the WHO the positive rate should be below 5%.2 Days above the threshold are denoted in red, days below are in blue. Note that the variables currently used for these plots –positiveIncrease and negativeIncrease– are being phased out and will be replaced by positiveCasesViral and negativeCasesViral. Each dot represents the rolling average of tests within the previous week (this approach smoothes out trends such as fewer cases being reported on weekends).
Partisanship and COVID Cases
Variants of Select Figures
Week to Week Changes in COVID Cases
Confirmed Cases as a Percentage of State Population
The two sets of points are confirmed cases (black), and potential cases (grey) which are confirmed cases times ten. For herd immunity, typically 70-90% of a population needs immunity.3
Data Sources
Data for this report comes from:
- The CDC Homepage https://www.cdc.gov/covid-data-tracker/index.html#county-map and https://usafacts.org/visualizations/coronavirus-covid-19-spread-map/, specifically:
- Confirmed COVID Cases https://usafactsstatic.blob.core.windows.net/public/data/covid-19/covid_confirmed_usafacts.csv
- Covid Deaths https://usafactsstatic.blob.core.windows.net/public/data/covid-19/covid_deaths_usafacts.csv
- County Population https://usafactsstatic.blob.core.windows.net/public/data/covid-19/covid_county_population_usafacts.csv
- Covidtracker.com data (used by Johns Hopkins https://coronavirus.jhu.edu/us-map) https://covidtracking.com/api/v1/states/daily.csv
- World Health Organization https://covid19.who.int/
- Somerville City data https://somerville-dashboardcovid.trial.opendatasoft.com/pages/citysdashboard/
Different Counts from Different Data
See the difference between https://covidtracking.com/api/v1/states/daily.csv and https://usafacts.org/visualizations/coronavirus-covid-19-spread-map/
